stamp
Concierge MCP for agentic workflows: verified time + drift, uuid, diff, calc, attest, verify.
使うべきか
品質と安全性
ツール定義とプロトコルへの準拠に関する自動分析に基づいています。
コンテキストコスト
これは、サーバーのツールがモデルのコンテキストに読み込まれるたびに消費されるおおよそのトークン数です。数が多いほど、ほかのタスクに使える注意が減ります。
インストール
ワンクリックインストール
これを `claude_desktop_config.json` ファイルに追加してください:
{
"mcpServers": {
"stamp": {
"command": "uvx",
"args": [
"stamp-mcp"
]
}
}
}実行可能なパッケージ
0.6.1stdioリモートエンドポイント
https://stamp-mcp.terradev.cloud/mcpstreamable-httpできること
ツール一覧
ツール（6）
🟢get_time(server, timezone)
Query an NTP server for current UTC time and this clock's offset. Appends the sample to the drift log and returns the trend inline: current offset, drift rate (ms/day), and whether the clock is stable, drifting, or accelerating.
入力スキーマ
{
"type": "object",
"properties": {
"server": {
"type": "string",
"description": "NTP server to query",
"default": "time.cloudflare.com"
},
"timezone": {
"type": "string",
"description": "IANA timezone for a 'local' field, e.g. America/New_York. Optional -- the HTTP transport also takes ?tz= in the URL."
}
}
}⚪generate_uuid(count)
Generate one or more random UUIDv4 identifiers -- for records, sessions, and IDs created in agent pipelines.
入力スキーマ
{
"type": "object",
"properties": {
"count": {
"type": "integer",
"description": "How many UUIDs to generate",
"default": 1,
"minimum": 1,
"maximum": 1000
}
}
}⚪diff(text_a, text_b, context)
Unified diff between two texts, with added/removed line counts. For reviewing edits, comparing outputs, or validating transformations.
入力スキーマ
{
"type": "object",
"properties": {
"text_a": {
"type": "string",
"description": "Original text"
},
"text_b": {
"type": "string",
"description": "Revised text"
},
"context": {
"type": "integer",
"description": "Lines of context around each change",
"default": 3,
"minimum": 0
}
},
"required": [
"text_a",
"text_b"
]
}🟢calculate(expression)
Evaluate a math expression safely: + - * / // % **, parentheses, functions (abs round min max sqrt floor ceil exp log log2 log10 pow sin cos tan), constants pi e tau inf. Parsed to an AST and only whitelisted nodes are computed -- no eval(), no names, no arbitrary code.
入力スキーマ
{
"type": "object",
"properties": {
"expression": {
"type": "string",
"description": "e.g. \"(1500 * 0.23) + 47\""
}
},
"required": [
"expression"
]
}⚪attest(payload, server)
Wrap any payload in a tamper-evident record: a UUID, a timestamp (NTP-verified when reachable, local clock otherwise -- the record says which), and a sha256 over the canonical record. One call, the record is complete and tamper-evident.
入力スキーマ
{
"type": "object",
"properties": {
"payload": {
"description": "Any JSON value to attest"
},
"server": {
"type": "string",
"description": "NTP server for the verified timestamp",
"default": "time.cloudflare.com"
}
},
"required": [
"payload"
]
}🟢verify(attested)
Check a record produced by attest: recompute the sha256 over the record and compare. Pass/fail -- did this payload produce this hash at this timestamp. Any modified field breaks it.
入力スキーマ
{
"type": "object",
"properties": {
"attested": {
"type": "object",
"description": "The record returned by attest"
}
},
"required": [
"attested"
]
}コミュニティ
エビデンス